#$&*
Phy 242
Your 'measuring atmospheric pressure' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** Measuring Atmospheric Pressure_labelMessages **
** Measuring Atmospheric Pressure_labelMessages **
When the bottle is squeezed, the water rises significantly in the vertical tube and shortens the length of the air column only slightly.
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I will use the triply-reduced ruler because this should have the greatest level of precision, however it will have some inaccuracy because errors are compounded. The triply-reduced ruler has smaller increments than the doubly-reduced ruler.
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88.5 cm
I placed the triply reduced ruler next to the meniscus and marked 30 cm. Then I moved the ruler to that point and measured again until I got to the end of the stopper.
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15 cm
16 cm
16.0, 17.1
15.7, 16.6
15.7, 16.5
15.4, 16.6
15.4, 16.7
This information represents the pressure in the vertical tube is equal to the pressure in the pressure tube.
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25 cm
16.4 cm
16.4, 17.7
16.2, 17.6
16.3, 17.5
16.2, 17.5
16.1, 17.5
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45 cm
16.4 cm
16.4, 18.5
16.2, 18.6
16.1, 18.6
15.9, 18.7
16.0, 18.6
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41 cm
16.5 cm
16.5, 18.6
16.2, 18.5
16.0, 18.6
16.0, 18.6
16.1, 18.5
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2.5 hours
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You appear to have good data.
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This should give you good results in the upcoming second part of the experiment.
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